Put the Vista toddler seat on top and a RumbleSeat underneath. The RumbleSeat brings its own adapters in the box, and the toddler seat on top goes on the Vista upper adapters.
Seat limits
- Main toddler seat: up to 22.7 kg.
- RumbleSeat V3: from 6 months to 15.9 kg. It has limited recline while forward-facing.
A third child
Add the PiggyBack board, which takes a standing child to 25 kg.
Check your parts
The Which adapter do I need? page confirms the parts for your setup.
Good to know
Bigger child in the main seat The main seat carries more than the RumbleSeat, so put the bigger child in the main seat and the smaller child in the RumbleSeat.
Still need help?
Lodge a request and our Melbourne team will reply within one business day. Include your receipt, a photo of the serial number label and photos of the problem.
More on uppababy.com.au
Information from uppababy.com.au, checked 1 October 2026.
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